things

create-vm.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/bash
+
+set -eu
+
+NAME="$1"
+
+mkdir -p tmp
+mkdir -p vm-state
+
+# https://mop.koeln/blog/creating-a-local-debian-vm-using-cloud-init-and-libvirt/
+# > DO NOT DOWNLOAD THE GENERICCLOUD IMAGE
+IMG=debian-12-generic-amd64.qcow2
+
+if ! [ -f "tmp/$IMG" ]; then
+    curl -L -o "tmp/$IMG" https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2
+fi
+
+DISK="vm-state/$NAME.qcow2"
+cp "tmp/$IMG" "$DISK"
+
+meta_data=$(mktemp)
+
+cat >"$meta_data" <<EOF
+instance-id: $NAME
+local-hostname: $NAME
+EOF
+
+virt-install -n "$NAME" \
+    --os-variant=debian12 \
+    --ram=2048 --vcpus=2 \
+    --import --disk "path=$DISK,bus=virtio" \
+    --network network=default,model=virtio \
+    --graphics=none --rng /dev/urandom \
+    "--cloud-init=user-data=user-data,meta-data=$meta_data" \
+    --noautoconsole
+
+rm "$meta_data"
+
+echo "Successfully created $NAME"
+
+until virsh domifaddr "$NAME" | grep ipv4 >/dev/null; do
+    echo "waiting for VM to start up and get an IP"
+    sleep 1
+done
+
+ip=$(virsh domifaddr "$NAME" | grep ipv4 | awk '{print $4}' | cut -d/ -f1)
+
+echo "IP: $ip"
+
+echo "$ip" >> vm-state/inventory.ini